4000A Jump Starter with 160PSI Air Compressor, 12V Car Battery Booster, 88.8Wh Portable Jump Box (10.0 Gas/10.0L Diesel) with 65W Fast Charging, Tire Inflator, Jumper Cables, and LED Light

I'll be honest — I was skeptical at first but oh man this WOLFBOX 4000A has completely won me over, and I can say it is one of the best and well made products I have purchased from Amazon. First, the jump-starting power is no joke. I tested it on my car and it fired up instantly — no hesitation at all. Knowing I have 4000A of peak current sitting in my car gives me serious peace of mind, especially during the winter months. The 160PSI air compressor is a genuine game-changer. I've used standalone tire inflators before, and this one rivals all of them. It's fast, accurate, and the digital display makes it easy to hit your exact target PSI without any guesswork. Build quality feels solid and premium — not cheap or plasticky. The LED display is bright and easy to read, and the included jumper cables are thick and well-made ( little bit short but it is really okay.) I also want to give a special shoutout to the Wolfbox customer service team, particularly Mark. When I had a question about my order, they were responsive, professional, and went above and beyond to make sure I was taken care of. That kind of support is rare and truly appreciated. Bottom line: whether you're a daily commuter, a road tripper, or just someone who wants to be prepared for the unexpected — buy this. You won't regret it.

Excellent product. When the real cold hit the northeast, the temperature dropped significantly. A 4 of my tires we down by 5 PSI and I could feel it in the steering. This little Wolfbox inflated all 4 tires in under 1 minute each!. This was much better than waiting in line at the local market for use of the air compressor. The design is intuitive and the screen is bright easy to read. the face of the box has large bold numbers and figures that make it easy to read. I did this in direct sunlight and it was still easy to read. The box came with half a charge and was fully charged within 2 hours. I highly recommend this product to be included in your vehicle for "just in case" situations.

Have had this for about a year. Let me tell you this is great. Have had to use twice for jump start. Once for myself and once for a nice lady with young kids stranded whose battery died. Both times this fired up the vehicle no problem. Now the other part the air pump. This has come in handy a few times. Before soccer practice for my girls to inflate soccer balls, a few times for bicycle tires, and even once for the baby stroller. Also the truck tires? No problem this sucker inflated them quick and easy. Saves a lot of time and money from air pumps at the service station. Love this. It’s a must have in the back of your vehicle. It gets used more the you would think. I didn’t think I would get as much use out of it over the course of a year. I actually bought a second one for my wife’s car. Pick this up if you are thinking about it. More than enough power and great battery life.

So far this has been great. I have only used to even out my tire pressures but I like how you can set your desired pressure and the unit shuts off automatically. I also like that it is supposed to start your car even with a completely dead battery. I learned the hard way that my previous unit still required the battery to have 30% or more charge before it would work as it stated in the fine print label. The unit is pretty compact and light weight and easily stores in the trunk in a nice case.

WOLFBOX 4000A Jump Starter MegaVolt 24 Air WOLFBOX Jump Starter with Air Compressor I just got it today and so can't speak of the ability to start a car, but I have used the air pump and charged my phones with it. Here is my feedback on that. First, the bad: 1) The USB-C to USB-C cable that comes with it is adequate for charging the WolfBox, but not for an Android phone. I bought the extra WolfBox 65amp charger and it charged the WolfBox just fine using the WolfBox supplied cable. Then when I plug that same cable into my Samsung S22 it warns me that I need to immediately unplug the cable from my phone. It says there may be liquid or debris in the port. I suspected that the cable is manufactured to cut corners and is missing some connections, and that turns out to be the case. USB-C cables can have up to 24 wires (PINS) plus a shield wire. Using a USB cable tester, my high-end Lenovo power USB-C to USB-C cable has PINROW A 1/2/3/4/5/8/9/10/11/12 and PINROW B 1/2/3/4/5/6/7/8/9/10/11/12, plus Shield. The only thing missing are PINROW A6 and A7. The WolfBox USB-C to USB-C cable is missing PINROW A 2/3/6/7/10/11 and PINROW B 2/3/8/10/11. I have never seen a USB-C cable missing so may PINROW connections. My phone hates it, and why would I want to keep it in the WolfBox package if it can't even be used to charge a phone? I will substitute my Lenovo cable, which both charges the WolfBox and lets the WolfBox charge my phone. Shame on you WolfBox for cutting corners on that cable! 2) There is an additional power-out port on the device that the documentation doesn't explain, other than to say it's there. It's labeled 15v/10A and nowhere does it say what size of plug you might buy to take advantage of it. 3) It could use some strap or carrying handle. It's relatively heavy and made of slick plastic. I would not want to have to use it in an emergency in the snow and mud. Now, the good: 4) It pumped up the tires on my car nicely. I like how you can set it to the PSI you want and then it stops automatically. The air hose port got very hot just putting a few PSI into my little car tires, so I imagine that a big truck would bring it to near meltdown. 5) The zippered case it comes in is nice, and there's enough room in there for the 65w extra charger I bought so I can charge the thing.

Nice, easy to use works great, holds a charge for quite a while.

Powerful, works really well, and the price is great. I mainly bought it for emergency jump‑starts, but the built‑in air compressor is a great bonus—it gives me a reason to use the unit regularly instead of letting it sit in the car. I’m still learning how to use it with accessories that don’t use USB‑C or USB‑A, and I do wish it came with a built‑in volt meter. I like it—works well and does what I need. Make sure you order the charger with it, it is not included.

Das Produkt macht optisch einen sehr guten Eindruck. Alles wirkt hochwertig und haltbar. Natürlich ist die Größe und das Gewicht nichts für die Handtasche aber dafür ist es auch nicht gedacht. In der mitgelieferten Tasche sind alle Zubehörteile sicher verwahrt und geschützt. Der Akku war zu 70 % geladen und mit einem 65 Watt Netzteil (gehört nicht zum Lieferumfang) sehr schnell auf 100 %. Die Bedienung erfolgt über Taster auf der Gerätevorderseite und dem Display und ist nahezu selbsterklärend. Ich habe die Starthilfe sofort an einem Fahrzeug mit abgeklemmter Batterie getestet und den Motor zwei mal ohne Probleme gestartet. Dabei hat der Akku lt. des vierstufigen Symbols auf der Anzeige fast nichts an Energie verloren. Der integrierte Kompressor funktioniert ebenfalls einwandfrei und ich habe gleich alle vier Reifen des Fahrzeugs auf den benötigten Reifendruck aktualisiert. Auf dem großen Display wird der aktuelle Druck in wählbaren Dimensionen angezeigt und kann vom Ist-Wert mit den Tasten + und - auf den Sollwert gebracht werden. Die Zubehörteile sind von guter Qualität und sitzen stramm und dicht. Auch die eingebaute Leuchte funktioniert gut in drei verschiedenen Modi. Die Powerbank-Funktion habe ich noch nicht ausprobiert aber ich bin überzeugt, dass das auch gut funktioniert. Ein paar Verbesserungsvorschläge hätte ich dennoch: - keine hochglänzenden empfindlichen Kunststoffteile verwenden - die Anzeige des Akkustandes auf dem Display in % angeben - Taster beleuchten oder farbig gestalten für die Verwendung bei schwachem Licht - gegen Mehrpreis gleich ein passendes 65-Watt Netzteil mitliefern Insgesamt bin ich mit dem Produkt sehr zufrieden und empfehle es uneingeschränkt weiter.

Cet appareil se charge très vite. J'ai eu l'occasion de regonfler deux pneus de la voiture. Il m'a suffit d'indiquer la pression à atteindre sur la première ligne. Vous raccorder le gonfleur. Vous verrez immédiatement la pression restante. Vous mettez en route le gonfleur qui s'arrêtera des que la pressiondelandée est atteinte, et tout cela sans trop de bruit et très rapidement. En ce qui concerne le démarrage électrique, je ne l'ai pas encore test. Personnellement, le le recommande.

It's absolutely amazing, it started my 2.2 diesel automatic mercedes with a completely flat battery instantly, the torch was handy as this happened when it was dark. I have inflated all my tyres to the correct psi, it stops automatically when the correct tyre pressure is reached which you can adjust easily by pressing the plus or minus buttons. You can charge your mobiles from this also and use it for other usb devices, so many uses in 1 package, takes around 90 minutes to fully charge, apparently it holds it's charge for 2 years, though I would top the battery up every 5 or 6 months just in case, or more frequently if you use it to inflate or check your tyre pressures. It comes in a robust smart case to protect it, the jump start leads grip very strong, it's an excellent quality item from wolfbox, as soon as you open it you will see for yourself. I have their mirror dash cam also which is another amazing quality product. I would honestly recommend this to everyone..

This is the best jump starter I have ever had it will start my 454 chevy with a worn starter and no battery not one other booster pack was able to do this it also has a compressor wich I have used to air up people with flat tires so they can drive home or to a tire shop

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